While Mrs. O'Leary may have been negligent in leaving an oil lamp in the barn for her cow to kick over, she would not be held liable for the Great Chicago Fire of 1871 because the chain of events from the cow kicking the lantern to the destruction of the city was not:

Activity that "necessarily involves a risk of serious harm to the person, land, or chattels of another, which cannot be eliminated by the exercise of the utmost care" and "is not a matter of common usage" is called:

"Super Wash" liquid dishwasher detergent is sold in a box shaped like a milk carton with a bright and cheery cover. Finding the carton under the kitchen sink, a two-year-old drinks it, suffering serious internal injuries. In a suit against "Super Wash" the court is likely to find the producer: